Applied and Environmental Soil Science / 2014 / Article / Tab 1 / Research Article
Arsenic, Chromium, and Other Potentially Toxic Elements in the Rocks and Sediments of Oropos-Kalamos Basin, Attica, Greece Table 1 Mean values of the chemical composition of the examined samples in comparison with element contents obtained by other studies [
34 –
36 ] and enrichment factors (EF).
Units DL Bulk lignite Chromiferous iron ore occurrences Marly formation Conglomerates Alluvial Elassona lignite mean [34 ] World Coal [35 ] Crustal average [36 ] EF 1 EF 2 EF 3 EF 4 EF 5 Ag μ g kg−1 2 44 87 10 14 — — — — — — — — — Al % 0.01 0.74 2.21 0.07 0.73 — — — — — — — — — As mg kg−1 0.1 226.2 39.8 12.1 34.8 — 32 10 1.8 125.7 22.1 6.7 19.3 — Au μ g kg−1 0.2 2.9 2.1 0.9 1.9 — — — — — — — — — B mg kg−1 20 56 20 24 20 — — — — — — — — — Ba mg kg−1 0.5 30.7 135.8 58.2 60.5 — — 200 — — — — — — Bi mg kg−1 0.02 0.2 0.33 0.02 0.09 — — — — — — — — — Ca % 0.01 2.01 2.35 20.69 13.86 — — — — — — — — — Cd mg kg−1 0.01 0.69 0.55 0.02 0.1 0.01 — — — — — — — — Co mg kg−1 0.1 23.7 38.3 1.5 9.8 38.25 26 5 25 1.0 1.5 0.1 0.4 1.5 Cr mg kg−1 0.5 212.3 256.6 4.6 69.7 212.5 119 20 100 2.1 2.6 0.1 0.7 2.1 Cu mg kg−1 0.01 32.44 27.9 1.85 21.11 27.3 119 15 55 0.6 0.5 0.0 0.4 0.5 Fe % 0.01 2.92 4.36 0.1 2.04 3.81 — — — — — — — — Ga mg kg−1 0.1 3.3 7.2 0.2 2 — 25 — 15 — 0.5 0.0 0.1 — Hg μ g kg−1 5 267 29.5 5 20 — 0.3 — 0.08 3337.5 368.8 62.5 250.0 — K % 0.01 0.06 0.3 0.02 0.07 — — — — — — — — — La mg kg−1 0.5 9.9 22.3 0.5 5.8 — 77 — 30 0.3 0.7 0.0 0.2 — Mg % 0.01 0.33 0.51 9.99 0.71 — — — — — — — — — Mn mg kg−1 1 94 1252 134 380 707.7 920 70 1000 0.1 1.3 0.1 0.4 0.7 Mo mg kg−1 0.01 7.63 0.51 0.12 0.24 — 15 3 1.5 5.1 0.3 0.1 0.2 — Na % 0.001 0.039 0.009 0.109 0.011 — — — — — — — — — Ni mg kg−1 0.1 415.9 293.9 4.8 69.1 — 88 — 75 5.6 3.9 0.1 0.9 — P % 0.001 0.041 0.045 0.005 0.046 — — — — — — — — — Pb mg kg−1 0.01 20.24 31.29 3.01 30.85 24.54 57 — 13 1.6 2.4 0.2 2.4 1.9 S % 0.02 2.75 0.03 0.02 0.04 — — — — — — — — — Sb mg kg−1 0.02 4.97 0.29 0.2 0.32 — 3 1 0.2 24.9 1.5 1.0 1.6 — Sc mg kg−1 0.1 5.3 6.8 0.3 1.7 — 23 4 22 0.2 0.3 0.0 0.1 — Se mg kg−1 0.1 4.3 0.8 0.3 0.6 — — 1 — — — — — — Sr mg kg−1 0.5 365.4 13.4 910 123.6 — 608 — 375 1.0 0.0 2.4 0.3 — Te mg kg−1 0.02 0.12 0.03 0.06 0.02 — — — — — — — — — Th mg kg−1 0.1 1.8 5.6 0.2 1.4 — 25 4 7.2 0.3 0.8 0.0 0.2 — Ti % 0.001 0.011 0.014 0.001 0.008 — — — — — — — — — Tl mg kg−1 0.02 1.61 0.3 0.03 0.05 — — — — — — — — — U mg kg−1 0.1 8.8 0.5 1.4 0.3 — 7 2 1.8 4.9 0.3 0.8 0.2 — V mg kg−1 2 225 65 3 14 — 187 40 135 1.7 0.5 0.0 0.1 — W mg kg−1 0.1 4.2 0.1 0.1 0.1 — — — — — — — — — Zn mg kg−1 0.1 38.9 72.4 4 63.52 92.8 176 50 70 0.6 1.0 0.1 0.9 1.3
DL: detection limit, EF 1: lignite compared to crustal average, EF 2: chromiferous iron ore compared to crustal average, EF 3: marly formation compared to crustal average, EF 4: conglomerates compared to crustal average, and EF 5: alluvial compared to crustal average.